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Comprehensive visual picture layered fusion method

A fusion method and picture technology, which is applied in the field of layered fusion of comprehensive scenes and pictures to achieve the effect of solving the problem of occlusion

Pending Publication Date: 2021-12-03
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is: to propose a layered fusion method for comprehensive visual images, which can solve the occlusion problem caused by the fusion of different images under a single graphics card

Method used

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  • Comprehensive visual picture layered fusion method

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Embodiment 1

[0034] The present invention proposes a method for layered fusion of comprehensive visual images, the method flow is as follows figure 1 shown, including the following steps:

[0035] Step 101: Obtain a virtual map picture according to the terrain database and flight data, and draw the virtual map picture and the symbol picture in non-overlapping blocks to obtain a block drawing picture;

[0036] Specifically, in the first preset area, the virtual map picture is drawn according to a fixed resolution; in the second preset area, the symbol picture is drawn, and the first preset area and the second preset area do not overlap;

[0037] In practical applications, the overall display screen is divided left and right or up and down into a first preset area and a second preset area, the first preset area can be the left or right area of ​​the overall display screen, and the second preset area can be The right or left area of ​​the overall display screen, or the first preset area is t...

Embodiment 2

[0054] This solution proposes a layered fusion method of comprehensive visual images, which can solve the problem of fusion of different images of comprehensive visual images under a single graphics card, including three-layer images of virtual map images, symbol images and video images, such as figure 1 As shown, the process is as follows:

[0055] Step 201: First draw a virtual map screen and a symbol screen according to the terrain database and flight data, wherein the virtual map screen can have a fixed resolution of 1024*768, and the drawing position is on the left side of the output screen. According to the resolution of the output screen, such as 1900*1080, the symbol screen is drawn on the right side of the virtual map screen with the same height, and the width is the output screen width minus the fixed width of the virtual map screen, such as 1900-1024=876, which is used to display aircraft For related flight parameters, the background area can be set to black, and th...

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Abstract

The invention provides a comprehensive visual picture layered fusion method, which comprises the following steps of: performing non-overlapping block drawing on a virtual map picture and a symbol picture to obtain a block drawing picture; transmitting the block drawing picture to a fusion module; employing the fusion module for segmenting the block drawing picture according to a fixed resolution and extracting a virtual map picture and a symbol picture; fusing the extracted virtual map picture with a video picture collected at a unified moment to obtain a fused picture; subjecting the extracted symbol picture to scale transformation according to the fixed resolution, obtaining a transformed symbol picture, with the size of the transformed symbol picture being consistent with that of the fused picture; performing pixel segmentation on the converted symbol picture according to a preset picture background pixel range, and removing a background region to obtain an effective symbol region; and superposing the effective symbol area on the fusion picture to obtain a final hierarchical fusion comprehensive visual picture.

Description

technical field [0001] The invention belongs to the technical field of computer graphics and image processing, and in particular relates to a layered fusion method of comprehensive visual images. Background technique [0002] The continuous development of airborne flight vision system technology can more effectively improve the pilot's situational awareness of the external environment and enhance flight safety. The comprehensive visual system combines the external 3D terrain with the sensor video data by fusing the terrain image and the sensor video, because the map view generated by the 3D terrain database is relatively clear, the resolution is high, and any field of view and distance can be presented , while the sensor video data has higher real-time performance, effectively improving the lag of pure terrain images and the disadvantages of sensor video in imaging, resolution and viewing angle. In the process of virtual-real visual fusion, in the single graphics card mode,...

Claims

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Application Information

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IPC IPC(8): G06T5/50G06T7/194G06T7/30G06T17/05
CPCG06T5/50G06T7/194G06T17/05G06T7/30
Inventor 潘妍程岳刘作龙韩伟余冠锋
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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